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Tarik2142/update.h

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esp8266 https OTA from firebase etc

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update.h

	// esp8266 https OTA functoins
	// 25.01.2020 Первая версия
	// 27.02.2020 оптимизирована проверка обновлений, теперь можно работать с любым сайтом.

	#include"WiFiClientSecure.h"
	#include"ESP8266httpUpdate.h"
	#defineDEBUG

	//const char* downloadHost = "firebasestorage.googleapis.com";
	constint16_thttpsPort=443;
	//const char* downloadEnding = "?alt=media";
	enumupdateResult_t :uint8_t {OTA_OK,OTA_CONNFAIL,OTA_UPDFAIL,OTA_NOFIRMWARE,OTA_NONEWFIRMWARE};//0, 1, 2, 3, 4
	///v0/b/tarik2142cloud.appspot.com/o/esp8266%2Fota%2Ffirmware.bin?alt=media

	updateResult_tcheckUpdates(constchardownloadHost,constcharfirmwarelink){//OTA_OK, OTA_CONNFAIL, OTA_UPDFAIL, OTA_NOFIRMWARE, OTA_NONEWFIRMWARE
	BearSSL::WiFiClientSecureclient;
	client.setInsecure();
	client.setTimeout(1000);
	#ifdefDEBUG
	Serial.print("connecting to ");
	Serial.println(downloadHost);
	#endif
	if (!client.connect(downloadHost,httpsPort)) {
	#ifdefDEBUG
	Serial.println("connection failed");
	#endif
	returnOTA_CONNFAIL;
	}else{
	#ifdefDEBUG
	Serial.println("connected!");
	#endif
	client.print(String("GET ")+firmwarelink+" HTTP/1.1\r\n"+
	"Host: "+downloadHost+"\r\n"+
	"User-Agent: esp8266\r\n"+
	"Connection: close\r\n\r\n");
	#ifdefDEBUG
	Serial.println("request sent");
	#endif
	while (client.connected()) {
	Stringline=client.readStringUntil('\n');
	if (line.indexOf("404")>0) {
	#ifdefDEBUG
	Serial.println("firmware not found");
	Serial.println(line);
	#endif
	returnOTA_NOFIRMWARE;
	}
	if (line=="\r") {
	#ifdefDEBUG
	Serial.println("headers received");
	#endif
	break;
	}
	}
	#ifdefDEBUG
	Serial.println("firmware found");
	#endif
	HTTPClienthttp;
	client.stop();
	//const int size = strlen(firmwarelink) + strlen(downloadEnding) + 1;
	//char link[size];
	//snprintf(link, size, "%s%s", firmwarelink, downloadEnding);
	if (http.begin(client,downloadHost,httpsPort,firmwarelink)){
	#ifdefDEBUG
	Serial.println("http client started");
	#endif
	int16_thttpCode=http.GET();
	if (httpCode==HTTP_CODE_OK){
	constintlen=http.getSize();
	if (len>0){
	if (len!=ESP.getSketchSize()){
	#ifdefDEBUG
	Serial.println("found new firmware");
	Serial.print("new firmware len = ");
	Serial.print(len);
	Serial.println();
	Serial.print("old firmware len = ");
	Serial.print(ESP.getSketchSize());
	Serial.println();
	#endif
	http.end();
	returnOTA_OK;
	}else{
	#ifdefDEBUG
	Serial.println("no new firmware found");
	#endif
	http.end();
	returnOTA_NONEWFIRMWARE;
	}
	}else{
	#ifdefDEBUG
	Serial.println("len < 0");
	#endif
	http.end();
	returnOTA_UPDFAIL;
	}
	}
	#ifdefDEBUG
	Serial.println();
	Serial.print("HTTP_CODE: ");
	Serial.print(httpCode);
	Serial.println();
	#endif
	http.end();
	returnOTA_CONNFAIL;
	}else{
	#ifdefDEBUG
	Serial.println("http client fail");
	#endif
	http.end();
	returnOTA_CONNFAIL;
	}
	}
	returnOTA_CONNFAIL;
	}

	updateResult_tstartUpdate(constchardownloadHost,constcharfirmwarelink){//OTA_OK, OTA_CONNFAIL, OTA_UPDFAIL, OTA_NOFIRMWARE, OTA_NONEWFIRMWARE
	intsize=strlen(downloadHost)+strlen(firmwarelink)+10;
	charlink[size];
	snprintf(link,size,"https://%s%s",downloadHost,firmwarelink);
	#ifdefDEBUG
	Serial.print("Starting OTA from: ");
	Serial.println(link);
	#endif
	BearSSL::WiFiClientSecureclient;
	client.setInsecure();
	client.setTimeout(1000);
	#ifdefDEBUG
	Serial.print("connecting to ");
	Serial.println(downloadHost);
	#endif
	if (!client.connect(downloadHost,httpsPort)) {
	#ifdefDEBUG
	Serial.println("connection failed");
	#endif
	returnOTA_CONNFAIL;
	}else{
	#ifdefDEBUG
	Serial.println("connected!");
	#endif
	}
	autoret=ESPhttpUpdate.update(client,link);
	#ifdefDEBUG
	Serial.println("update failed, result: ");
	Serial.print((int)ret);
	#endif
	returnOTA_UPDFAIL;
	}

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Tarik2142 commentedFeb 27, 2020•
edited
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usage example:

#include "update.h"
const char* host = "firebasestorage.googleapis.com";
const char* url = "/v0/b/tarik2142cloud.appspot.com/o/esp8266%2Fota%2Fled_time.bin?alt=media";

if(checkUpdates(host, url) == OTA_OK){
startUpdate(host, url);
}

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Tarik2142/update.h

Tarik2142 commentedFeb 27, 2020•
edited
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Tarik2142 commentedFeb 27, 2020•
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